Robuta

https://lists.nanog.org/archives/list/nanog@lists.nanog.org/thread/YAHMXVM7XIHHJIXSMGEHS22UHS5QHZHA/ Multi-port RFC2544/EtherSAM loopback appliance - NANOG - lists.nanog.org multi port loopback appliance nanog lists https://www.nts-tech.com/ethernettransmissionrfc2544-chinese Ethernet/Transmission(RFC2544)-Chinese | NTS Technologies ethernet transmission chinese nts technologies